1 : //* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 : /* ***** BEGIN LICENSE BLOCK *****
3 : * Version: MPL 1.1/GPL 2.0/LGPL 2.1
4 : *
5 : * The contents of this file are subject to the Mozilla Public License Version
6 : * 1.1 (the "License"); you may not use this file except in compliance with
7 : * the License. You may obtain a copy of the License at
8 : * http://www.mozilla.org/MPL/
9 : *
10 : * Software distributed under the License is distributed on an "AS IS" basis,
11 : * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
12 : * for the specific language governing rights and limitations under the
13 : * License.
14 : *
15 : * The Original Code is Url Classifier code.
16 : *
17 : * The Initial Developer of the Original Code is
18 : * the Mozilla Foundation.
19 : * Portions created by the Initial Developer are Copyright (C) 2011
20 : * the Initial Developer. All Rights Reserved.
21 : *
22 : * Contributor(s):
23 : * Gian-Carlo Pascutto <gpascutto@mozilla.com>
24 : *
25 : * Alternatively, the contents of this file may be used under the terms of
26 : * either the GNU General Public License Version 2 or later (the "GPL"), or
27 : * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
28 : * in which case the provisions of the GPL or the LGPL are applicable instead
29 : * of those above. If you wish to allow use of your version of this file only
30 : * under the terms of either the GPL or the LGPL, and not to allow others to
31 : * use your version of this file under the terms of the MPL, indicate your
32 : * decision by deleting the provisions above and replace them with the notice
33 : * and other provisions required by the GPL or the LGPL. If you do not delete
34 : * the provisions above, a recipient may use your version of this file under
35 : * the terms of any one of the MPL, the GPL or the LGPL.
36 : *
37 : * ***** END LICENSE BLOCK ***** */
38 :
39 : #include "nsILocalFile.h"
40 : #include "nsCRT.h"
41 : #include "nsIFile.h"
42 : #include "nsISupportsImpl.h"
43 : #include "nsCheckSummedOutputStream.h"
44 :
45 : ////////////////////////////////////////////////////////////////////////////////
46 : // nsCheckSummedOutputStream
47 :
48 1261 : NS_IMPL_ISUPPORTS_INHERITED3(nsCheckSummedOutputStream,
49 : nsSafeFileOutputStream,
50 : nsISafeOutputStream,
51 : nsIOutputStream,
52 : nsIFileOutputStream)
53 :
54 : NS_IMETHODIMP
55 97 : nsCheckSummedOutputStream::Init(nsIFile* file, PRInt32 ioFlags, PRInt32 perm,
56 : PRInt32 behaviorFlags)
57 : {
58 : nsresult rv;
59 97 : mHash = do_CreateInstance(NS_CRYPTO_HASH_CONTRACTID, &rv);
60 97 : NS_ENSURE_SUCCESS(rv, rv);
61 :
62 97 : rv = mHash->Init(nsICryptoHash::MD5);
63 97 : NS_ENSURE_SUCCESS(rv, rv);
64 :
65 97 : return nsSafeFileOutputStream::Init(file, ioFlags, perm, behaviorFlags);
66 : }
67 :
68 : NS_IMETHODIMP
69 97 : nsCheckSummedOutputStream::Finish()
70 : {
71 97 : nsresult rv = mHash->Finish(false, mCheckSum);
72 97 : NS_ENSURE_SUCCESS(rv, rv);
73 :
74 : PRUint32 written;
75 97 : rv = nsSafeFileOutputStream::Write(reinterpret_cast<const char*>(mCheckSum.BeginReading()),
76 194 : mCheckSum.Length(), &written);
77 97 : NS_ASSERTION(written == mCheckSum.Length(), "Error writing stream checksum");
78 97 : NS_ENSURE_SUCCESS(rv, rv);
79 :
80 97 : return nsSafeFileOutputStream::Finish();
81 : }
82 :
83 : NS_IMETHODIMP
84 3201 : nsCheckSummedOutputStream::Write(const char *buf, PRUint32 count, PRUint32 *result)
85 : {
86 3201 : nsresult rv = mHash->Update(reinterpret_cast<const uint8*>(buf), count);
87 3201 : NS_ENSURE_SUCCESS(rv, rv);
88 :
89 3201 : return nsSafeFileOutputStream::Write(buf, count, result);
90 : }
91 :
92 : ////////////////////////////////////////////////////////////////////////////////
|